Weather Records on 4 May 1981

667 weather records were set or tied worldwide on 4 May 1981. Highest significance: Jetmore, US.

Key Facts for 4 May 1981

On 4 May 1981, 667 weather records were set or tied at long-record stations worldwide.
117 were record highs and 252 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 66 monthly and 600 daily.
Jetmore set a monthly record daily precipitation of 130.6 mm (5.1 in) on 4 May 1981.
Across 163 earlier years (1795 to 2026) the same calendar date averaged 429 records.

Record Map

667 stations

667 station records on 4 May 1981 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 4 May 1981: highest significance records shown on the map
Station	Country	Type	Value	Significance
Jetmore	United States	Record daily precipitation	130.6 mm (5.1 in)	64 of 100 (Major)
Loretta 1W	United States	Record daily precipitation	113.3 mm (4.5 in)	64 of 100 (Major)
Zumbrota	United States	Record daily precipitation	57.9 mm (2.3 in)	59 of 100 (Notable)
Houston-Westbury	United States	Record daily precipitation	200.4 mm (7.9 in)	56 of 100 (Notable)
Tatui	Brazil	Record daily precipitation	113.4 mm (4.5 in)	55 of 100 (Notable)
Marquette	United States	Record daily precipitation	26.7 mm (1.1 in)	55 of 100 (Notable)
Fremont	United States	Record daily precipitation	70.1 mm (2.8 in)	54 of 100 (Notable)
Miltonvale	United States	Record daily precipitation	88.1 mm (3.5 in)	49 of 100 (Notable)
Conroe	United States	Record daily precipitation	153.4 mm (6.0 in)	49 of 100 (Notable)
Logan 1 WNW	United States	Record daily precipitation	49.5 mm (1.9 in)	48 of 100 (Notable)
Houston Hts	United States	Record daily precipitation	174.0 mm (6.9 in)	47 of 100 (Notable)
Blair	United States	Record daily precipitation	67.6 mm (2.7 in)	46 of 100 (Notable)
Tomball	United States	Record daily precipitation	106.9 mm (4.2 in)	46 of 100 (Notable)
Coleman	Canada	Record daily precipitation	39.4 mm (1.6 in)	45 of 100 (Notable)
Grangeville	United States	Record daily snowfall	5.1 cm (2.0 in)	44 of 100 (Notable)
Sogndal - Selseng	Norway	Record snow depth	120.0 cm (47.2 in)	43 of 100 (Notable)
Vastervik	Sweden	Record low minimum temperature	-4.0 C (24.8 F)	43 of 100 (Notable)
Albert Lea 3SE	United States	Record daily precipitation	38.1 mm (1.5 in)	43 of 100 (Notable)
Wasa	Canada	Record daily precipitation	26.0 mm (1.0 in)	41 of 100 (Notable)
Ventura	Brazil	Record daily precipitation	29.4 mm (1.2 in)	40 of 100 (Notable)
Kapuskasing Cda	Canada	Record daily precipitation	32.8 mm (1.3 in)	40 of 100 (Notable)
Staplehurst	United States	Record daily precipitation	71.1 mm (2.8 in)	40 of 100 (Notable)
Archer	United States	Record daily precipitation	30.2 mm (1.2 in)	40 of 100 (Notable)
Seward AP	United States	Record daily precipitation	52.8 mm (2.1 in)	40 of 100 (Notable)
Sveg	Sweden	Record low minimum temperature	-10.2 C (13.6 F)	39 of 100 (Notable)
Fairmont	United States	Record daily precipitation	44.2 mm (1.7 in)	38 of 100 (Notable)
Houston Indep Hts	United States	Record daily precipitation	108.0 mm (4.3 in)	38 of 100 (Notable)
Klimpfjall	Sweden	Record low minimum temperature	-20.1 C (-4.2 F)	37 of 100 (Notable)
Cedar Falls Hydro Plt	United States	Record daily precipitation	41.1 mm (1.6 in)	37 of 100 (Notable)
Ida Grove 5NW	United States	Record daily precipitation	43.2 mm (1.7 in)	36 of 100 (Notable)
Stanley Wwtp	United States	Record daily precipitation	47.8 mm (1.9 in)	36 of 100 (Notable)
Surgut	Russia	Record high minimum temperature	4.3 C (39.7 F)	35 of 100 (Notable)
Audubon	United States	Record daily precipitation	50.5 mm (2.0 in)	35 of 100 (Notable)
Onawa 3NW	United States	Record daily precipitation	29.7 mm (1.2 in)	35 of 100 (Notable)
Red Wing	United States	Record daily precipitation	44.7 mm (1.8 in)	35 of 100 (Notable)
Alvin	United States	Record daily precipitation	93.2 mm (3.7 in)	35 of 100 (Notable)
Itatiba	Brazil	Record daily precipitation	39.1 mm (1.5 in)	34 of 100 (Routine)
Szombathely	Hungary	Record low maximum temperature	7.6 C (45.7 F)	34 of 100 (Routine)
Harnosand	Sweden	Record low minimum temperature	-6.5 C (20.3 F)	34 of 100 (Routine)
Karlstad	Sweden	Record low minimum temperature	-3.8 C (25.2 F)	34 of 100 (Routine)
Harlan	United States	Record daily precipitation	67.1 mm (2.6 in)	34 of 100 (Routine)
Red Wing Dam 3	United States	Record daily precipitation	39.6 mm (1.6 in)	34 of 100 (Routine)
Gresham 3W	United States	Record daily precipitation	63.5 mm (2.5 in)	34 of 100 (Routine)
Houston N Houston	United States	Record daily precipitation	124.5 mm (4.9 in)	34 of 100 (Routine)
Santa Maria (Dge)	Mexico	Record low minimum temperature	6.7 C (44.1 F)	33 of 100 (Routine)
Denison	United States	Record daily precipitation	41.9 mm (1.6 in)	33 of 100 (Routine)
Sac City	United States	Record daily precipitation	51.3 mm (2.0 in)	33 of 100 (Routine)
Wells	United States	Record daily precipitation	40.1 mm (1.6 in)	33 of 100 (Routine)
McAllen	United States	Record daily precipitation	113.8 mm (4.5 in)	33 of 100 (Routine)
Long Lake Dam	United States	Record daily precipitation	31.5 mm (1.2 in)	33 of 100 (Routine)
Tobolsk	Russia	Record high minimum temperature	10.1 C (50.2 F)	32 of 100 (Routine)
Sredny Vasjugan	Russia	Record high minimum temperature	11.7 C (53.1 F)	32 of 100 (Routine)
Sioux Rapids	United States	Record daily precipitation	37.6 mm (1.5 in)	32 of 100 (Routine)
Amery	United States	Record daily precipitation	33.0 mm (1.3 in)	32 of 100 (Routine)
Plymouth Wwtp	United States	Record high minimum temperature	18.3 C (64.9 F)	32 of 100 (Routine)
Bloomer	United States	Record daily precipitation	41.4 mm (1.6 in)	31 of 100 (Routine)
Kapuskasing A	Canada	Record daily precipitation	35.0 mm (1.4 in)	30 of 100 (Routine)
Vilnius	Lithuania	Record low minimum temperature	-2.9 C (26.8 F)	30 of 100 (Routine)
Bison 3NW	United States	Record daily precipitation	59.2 mm (2.3 in)	30 of 100 (Routine)
Rice Lake	United States	Record daily precipitation	35.3 mm (1.4 in)	30 of 100 (Routine)

Counts by Type and Timescale

667 records

Records set or tied on 4 May 1981 by type: Highest daily maximum 38, Lowest daily maximum 85, Highest daily minimum 79, Lowest daily minimum 167, Heaviest daily rainfall 274, Heaviest daily snowfall 12, Deepest snow cover 12.

Records on 4 May 1981 by type
Record type	Records
Highest daily maximum	38
Lowest daily maximum	85
Highest daily minimum	79
Lowest daily minimum	167
Heaviest daily rainfall	274
Heaviest daily snowfall	12
Deepest snow cover	12

Records on 4 May 1981 by timescale: all-time 1, monthly 66, daily 600.

How Much Records Were Beaten By

563 broken records

Margins by which the 563 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 280.0. Ties are not counted.

Top 20 by Significance

4 May 1981

Top 20 records on 4 May 1981 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 May 1981	Jetmore, US	monthly rain	130.6 mm (5.1 in)	54.9 mm (2.2 in)	22 years	64 of 100 (Major)
4 May 1981	Loretta 1W, US	monthly rain	113.3 mm (4.5 in)	51.6 mm (2.0 in)	35 years	64 of 100 (Major)
4 May 1981	Zumbrota, US	daily rain	57.9 mm (2.3 in)	38.8 mm (1.5 in)	52 years	59 of 100 (Notable)
4 May 1981	Houston-Westbury, US	monthly rain	200.4 mm (7.9 in)	85.1 mm (3.4 in)	10 years	56 of 100 (Notable)
4 May 1981	Tatui, BR	monthly rain	113.4 mm (4.5 in)	54.0 mm (2.1 in)	4 years	55 of 100 (Notable)
4 May 1981	Marquette, US	daily rain	26.7 mm (1.1 in)	16.0 mm (0.6 in)	95 years	55 of 100 (Notable)
4 May 1981	Fremont, US	daily rain	70.1 mm (2.8 in)	40.1 mm (1.6 in)	43 years	54 of 100 (Notable)
4 May 1981	Miltonvale, US	daily rain	88.1 mm (3.5 in)	68.5 mm (2.7 in)	23 years	49 of 100 (Notable)
4 May 1981	Conroe, US	daily rain	153.4 mm (6.0 in)	89.9 mm (3.5 in)	28 years	49 of 100 (Notable)
4 May 1981	Logan 1 WNW, US	daily rain	49.5 mm (1.9 in)	20.3 mm (0.8 in)	80 years	48 of 100 (Notable)
4 May 1981	Houston Hts, US	all-time rain	174.0 mm (6.9 in)	34.3 mm (1.4 in)	26 years	47 of 100 (Notable)
4 May 1981	Blair, US	daily rain	67.6 mm (2.7 in)	32.8 mm (1.3 in)	43 years	46 of 100 (Notable)
4 May 1981	Tomball, US	daily rain	106.9 mm (4.2 in)	66.8 mm (2.6 in)	28 years	46 of 100 (Notable)
4 May 1981	Coleman, CA	daily rain	39.4 mm (1.6 in)	17.8 mm (0.7 in)	50 years	45 of 100 (Notable)
4 May 1981	Grangeville, US	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	86 years	44 of 100 (Notable)
4 May 1981	Sogndal - Selseng, NO	daily snow depth	120.0 cm (47.2 in)	28.0 cm (11.0 in)	78 years	43 of 100 (Notable)
4 May 1981	Vastervik, SE	daily low min	-4.0 C (24.8 F)	1.5 C (2.7 F)	97 years	43 of 100 (Notable)
4 May 1981	Albert Lea 3SE, US	daily rain	38.1 mm (1.5 in)	12.7 mm (0.5 in)	85 years	43 of 100 (Notable)
4 May 1981	Wasa, CA	daily rain	26.0 mm (1.0 in)	16.6 mm (0.7 in)	30 years	41 of 100 (Notable)
4 May 1981	Ventura, BR	daily rain	29.4 mm (1.2 in)	22.2 mm (0.9 in)	18 years	40 of 100 (Notable)

Significance is a score from 0 to 100 combining margin, the age of the old record and the length of the station's record. How it is computed.

The Same Date in Other Years

1795 to 1981

Records set or tied on this calendar date in each year from 1795 to 1981. 1981 had 667 records.

Counts for years before the ledger starts come from the same station rules.

Records on 05-04 in each year
Year	Records
1795	1
1796	1
1820	1
1836	2
1840	1
1847	1
1850	2
1851	2
1852	1
1856	3
1858	1
1859	1
1861	2
1862	1
1864	3
1865	2
1868	3
1869	1
1870	2
1875	1
1877	2
1878	1
1879	1
1880	1
1882	1
1885	1
1886	1
1888	1
1889	4
1890	1
1892	4
1893	3
1894	6
1895	3
1896	3
1897	2
1898	2
1899	2
1900	2
1902	5
1903	8
1904	8
1905	19
1906	5
1907	37
1908	18
1909	13
1910	14
1911	37
1912	12
1913	63
1914	21
1915	75
1916	57
1917	60
1918	30
1919	69
1920	43
1921	62
1922	283
1923	82
1924	88
1925	80
1926	230
1927	112
1928	205
1929	177
1930	269
1931	169
1932	104
1933	274
1934	456
1935	518
1936	313
1937	230
1938	445
1939	295
1940	602
1941	436
1942	820
1943	358
1944	872
1945	654
1946	463
1947	649
1948	578
1949	1,130
1950	953
1951	292
1952	698
1953	389
1954	1,045
1955	471
1956	433
1957	433
1958	414
1959	613
1960	443
1961	466
1962	265
1963	313
1964	570
1965	433
1966	1,113
1967	928
1968	304
1969	377
1970	454
1971	810
1972	364
1973	313
1974	367
1975	683
1976	554
1977	736
1978	1,016
1979	1,529
1980	511
1981	667
1982	591
1983	539
1984	885
1985	821
1986	1,128
1987	1,004
1988	591
1989	743
1990	1,461
1991	1,088
1992	933
1993	791
1994	821
1995	974
1996	1,298
1997	962
1998	898
1999	1,167
2000	1,398
2001	1,345
2002	1,343
2003	1,158
2004	1,341
2005	1,152
2006	650
2007	699
2008	624
2009	727
2010	999
2011	1,023
2012	1,343
2013	1,447
2014	602
2015	622
2016	463
2017	669
2018	972
2019	574
2020	504
2021	616
2022	470
2023	681
2024	885
2025	456
2026	554

Download the Data

Data for records on 1981-05-04: CSV or JSON. Field meanings are on the data page.

Sources: Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Made with Natural Earth. Public domain map data. Borders are Natural Earth's de facto depiction. Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 50	547
50 to 100	15
100 to 150	0
150 to 200	0
200 to 250	0
250 to 300	1